BR112019004416A2 - method for the production of alloy steel - Google Patents

method for the production of alloy steel

Info

Publication number
BR112019004416A2
BR112019004416A2 BR112019004416A BR112019004416A BR112019004416A2 BR 112019004416 A2 BR112019004416 A2 BR 112019004416A2 BR 112019004416 A BR112019004416 A BR 112019004416A BR 112019004416 A BR112019004416 A BR 112019004416A BR 112019004416 A2 BR112019004416 A2 BR 112019004416A2
Authority
BR
Brazil
Prior art keywords
melt
nitrogen
manganese
molten steel
steel
Prior art date
Application number
BR112019004416A
Other languages
Portuguese (pt)
Inventor
Tae Ahn Chong
Jeong Beak Jun
Ho Song Min
Chang Kang Soo
Hee Han Woong
Original Assignee
Posco
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Posco filed Critical Posco
Publication of BR112019004416A2 publication Critical patent/BR112019004416A2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/02—Casting compound ingots of two or more different metals in the molten state, i.e. integrally cast
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C2007/0093—Duplex process; Two stage processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/06—Modeling of the process, e.g. for control purposes; CII
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/08—Particular sequence of the process steps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

método para a produção de ligas de aço a presente invenção trata de um método para produzir aço que inclui: preparar um primeiro aço fundido e uma fusão contendo manganês; fornecer um gás de nitrogênio a um recipiente para introduzir nitrogênio na fusão recebida no recipiente e, assim, ajustar um conteúdo de nitrogênio (% em peso) na fusão para um conteúdo de nitrogênio necessário (% em peso); e misturar a fusão e o primeiro aço fundido para produzir um segundo aço fundido contendo manganês e nitrogênio. assim, nas modalidades exemplificativas, uma vez que o nitrogênio não é introduzido enquanto se fundem grandes quantidades de materiais sólidos, a oxidação do manganês devido a uma temperatura elevada pode ser minimizada ou evitada. além disso, nas modalidades exemplificativas, uma grande quantidade de material sólido não é adicionada, e uma pequena quantidade de metal não ferroso contendo manganês ou uma liga de ferro femn é adicionada, se necessário, a uma fusão produzida em um estado fundido e, assim, um problema de queda de temperatura devido à adição do material sólido pode ser minimizado ou evitado.Method for the production of steel alloys The present invention is a method for producing steel which includes: preparing a first molten steel and a manganese-containing melt; supplying a nitrogen gas to a container to introduce nitrogen into the received melt in the container and thereby adjusting a nitrogen content (% by weight) in the melt to a required nitrogen content (% by weight); and mixing the melt and first molten steel to produce a second molten steel containing manganese and nitrogen. Thus, in exemplary embodiments, since nitrogen is not introduced while melting large quantities of solid materials, oxidation of manganese due to a high temperature can be minimized or avoided. furthermore, in exemplary embodiments, a large amount of solid material is not added, and a small amount of non-ferrous metal containing manganese or an iron femn alloy is added, if necessary, to a melt produced and thus , a temperature drop problem due to the addition of solid material can be minimized or avoided.

BR112019004416A 2016-09-06 2017-09-04 method for the production of alloy steel BR112019004416A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160114442A KR101796089B1 (en) 2016-09-06 2016-09-06 Method for manufacturing steel
PCT/KR2017/009664 WO2018048161A1 (en) 2016-09-06 2017-09-04 Method for manufacturing steel

Publications (1)

Publication Number Publication Date
BR112019004416A2 true BR112019004416A2 (en) 2019-05-28

Family

ID=60386450

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019004416A BR112019004416A2 (en) 2016-09-06 2017-09-04 method for the production of alloy steel

Country Status (7)

Country Link
US (1) US20200377977A1 (en)
EP (1) EP3511428A4 (en)
JP (1) JP2019526712A (en)
KR (1) KR101796089B1 (en)
CN (1) CN109689898A (en)
BR (1) BR112019004416A2 (en)
WO (1) WO2018048161A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102227824B1 (en) 2018-07-23 2021-03-15 주식회사 포스코 Manufacturing method of alloy steel
CN114250403B (en) * 2021-12-20 2022-10-25 二重（德阳）重型装备有限公司 Ingot casting method for enhancing self-diffusion, carbon manganese steel, 20SiMn steel and ingot casting method thereof

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684403A (en) * 1986-06-19 1987-08-04 Elkem Metals Company Dephosphorization process for manganese-containing alloys
DE10012837C1 (en) * 2000-03-16 2001-07-26 Vsg En & Schmiedetechnik Gmbh Production of steel alloy with a precisely defined nitrogen content comprises adding gaseous alloying component and inert gas to atmosphere in vessel with adjustment of pressure and concentration of the inert gas and the alloying component
JP4277741B2 (en) * 2004-06-10 2009-06-10 Ｊｆｅスチール株式会社 Method for melting nitrogen-containing steel
KR101104799B1 (en) * 2004-09-30 2012-01-12 주식회사 포스코 Refining method of enamel molten steel containing high concentration titanium and nitrogen
JP4844087B2 (en) * 2005-10-31 2011-12-21 Ｊｆｅスチール株式会社 Method for adjusting nitrogen concentration in molten steel and method for producing steel for large heat input
UA82962C2 (en) * 2005-12-02 2008-05-26 Sms Demag Ag Method and smelting unit for obtaining steel with high manganese and low carbon content
JP4627069B2 (en) * 2006-05-09 2011-02-09 株式会社日本製鋼所 Manufacturing method of high nitrogen steel
CN100593578C (en) * 2008-03-24 2010-03-10 二重集团（德阳）重型装备股份有限公司 Method for smelting high-nitrogen steel
KR101424644B1 (en) * 2012-12-21 2014-08-04 주식회사 포스코 Alloy steel manufacturing methods
US20160053350A1 (en) * 2013-04-11 2016-02-25 Posco Molten manganese-containing steel production method, holding furnace, and molten manganese-containing steel production equipment using holding furnace
CN105452504B (en) * 2013-04-11 2018-03-20 株式会社Posco Water producing method containing manganese steel, holding furnace and the water production device containing manganese steel using holding furnace
CN103436768B (en) * 2013-08-22 2016-04-13 长春工业大学 A kind of high alloy melt prepares the method for high-strength stainless steel

Also Published As

Publication number Publication date
JP2019526712A (en) 2019-09-19
EP3511428A1 (en) 2019-07-17
WO2018048161A1 (en) 2018-03-15
US20200377977A1 (en) 2020-12-03
KR101796089B1 (en) 2017-11-10
CN109689898A (en) 2019-04-26
EP3511428A4 (en) 2019-07-31

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 4A ANUIDADE.

B350 Update of information on the portal [chapter 15.35 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2640 DE 10-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.